Flushing-tank.



PATENTED MAR. 10, 1908.

G. W, PALMER-8n P. B. PIERCE.

FLUSHING TANK.

APPLICATION FILED AUG.21,1906.

2 SHEETS-SHEET 1.

mmmm 25 No. 881,145. PATENTED MAB 10, 1908.

G. W. PALMER (SI, 1?. B. PIERCE.

PLUSHING TANK. APPLICATION TILED AUG. 21. 19064 ZSHEBTS-SHEET .3

gized by direct downward jet of water from i to be flushed,

enlarged concentric cup and plunger for maonen W. PALMER AND rennnsioicn riiinon, or LANCASTER, MASSACHUSETTS.

. FLUSHING-TANK;

Application filed August 21,

To all whom it may remain: v

Be it known that we, GEORGE W. PALMER and Fnnnnnroicl l. PIERC both of Lancaster, in the county of Worcester and State of Massachusetts, have invented new and use-. 'ful Improvements in Flushing-Tanks; and we do hereby declare that the followingis a full, clear, and exact description of thesame.

'lhe object of this invention is to provide improved flushing apparatus especially adapted for low-down tanks in distinction fromthose requiring for the flushing operation considerable elevation above the bowl Our apparatus is especiallycompact and the drawings and especially referred to inthe appended claims. v

Some of the features characteristic of our invention are: the operative mechanism inclosed in and largel mounted on the upper edges ofa water tigh metallic or er vuivalent shell within the wooden casing: t e usual pull chain dispensed with and a lever system substituted, one lever with protruding hail dle and one with transverse rock-shaft and arms and a reciprocating connecting rod;

priming the siphon, actuated by said two levers and rod: outflow through siphon enermain'supply under pressure and not entering tank body: tank filling tube having a lim-- ited vertical reciprocation, the valve opening by a downward movement of said tube due" to a weight effective as such on a peculiar lever only when the tank empties,'.and the upward, closing movement also involving a toggle action.

Minor improvements and advantages will appear in the accompanying description anddrawings which form part of this'specification and wherein like numbers indicate like 7 parts throughout.

Figure 1 is a verticaljlongitudinal central section of our apparatus in apposition ready for operation. Fig. 2 is a top plan view of the same. Fig. 3 is a si(le*elevationwith part of the casing broken away, and shows the tank in operation. Fig. 4 is a -perspec tive view of a portion of the operating mechanism. Fig. 5 is a sectional detail of the fillingvalve'. f

6 is the box.- or easing supplied with a'ceverlining.

Specification of Letters'rfatent. Patented March- 10, 1908.

1906. Serla1No.331,457.

7 and contains a tank 8 preferably of sheet copper, open at the top and nearly as deep as the box, for which it forms a Watertight The discharge leg 9 of siphon "10 v passes through the floor of the tank 8 and box 6 and is connected in any well-known manner with the bowl to be flushed. The short leg 11 of siphon 10 enters the top of awater passage 12 leading from the footof a fixed vertical tube 13,-such passage resting on the floor support for tube. 13. v

At the upper end of tube 13 is mounted a of tank 8 and forming the principal rest or telescoping plunger. 14, which cooperates with tube 13 to prime the siphon. This plunger is formed, as shown most clearly in Fig. 1, of two concentric vertical cylinders which inclose the circular wall of tube 131and are closed or connected to .each other at the top. The inner cylinder 15 has a floor 16, on. which is mounted a central stem or piston rod 17 extending slightly above the tops of the two cylinders for the purpose of forming a hinge joint for the bent end 18 of lever 19, see Figs. 3and4f 1 I Lever. lll i s-shown in Figs. 1 and 2 as ivotedinears20j detachably mounted on t e upperedge 'of-tank 8, and has ashort arm 21 which is offset-at its left end to enter arece-ss 'in the casingandslotted at 22 'to'receive the .nppe'r enchof-"connecting rod 23 v which works in said recess; Rod'23ds' pivotally connected at Z lfiFig. 3 ,f to operating lever 25 which is PivotedatQZS-jinthe sides of box 6 and is provided wanna actuating handle 27 projecting'throughjslot.28 in the side of the ox. i v

The water inlet pipe 3O'fis'prov1ded with an ordinary angle valve 31 v operated by lever 19 throu h the lagency Gram; 32, rigidly connecte'd to thetransverse'rock shaft or pivot pin 33-of salidf lever 19 ,"arm 32 being slotted at 34 to receive a threaded bolt 35 provided.

with nutsiada ted toengage arm 32, Figs. '1 and 3, said be t being pivotallytconnected at 37 to the bentvalvestem 38, pivotally mounted at 39 OILValV 31.

Connected to inletpipe 30-by'valve 31 is a ending tank-filling tube 40"mounted for imited vertical movement in filling-valve box 11, andprovided Withan outwardly extending. ear lg, Fig. 5, towhichis pivotally connected a pair of links 43 which 006 eratc with the shank'fl l of bent lever 45 to o'rma arm 5-1 formed at its outer end with a pro-- Arm 51' jecting lug 55 to engage roller 50. has its socket formed with an inclination. as

at .56. to prevent downward movement when f engaging roll 50 and permitupward movement when engaged by roll 50. as will be presently explained.

The free end of bent notches 57 in its upper edge for adjustable engagement of bail 5a of weightot).

Weight 59 is preferably a hollow copper pail tilled with water and, provided with a cover 60 for keeping out the sediment .or is formed solid of a substance having the same specific gravityas water, in order that it may act as a weight only when the water level in the tank is below the line'of this device, gravitation only acting on it at suchtimes.

Mounted in valve box 31 is a small conduit with roller 50 and of siphon 10; thus expediting the flow. The downward, advance movepient of arm 52 causes lug 55 at the tip of arm 51, to contact ush it .inwardly toward 7 tube 10. thus straig itening the toggle joint; compare Figs. 1 and 3. As roller 50 moves inwardly it also rises in its arc of travel. being helped therein by the cam-surface 71) on lug 55. see Fig. 1. By the time bent lever 15 has assumed the position shown in Fig. 3. lug 55 has ridden under and past roll 50 which is then free to resume its original position when properly acted upon. Valve 11 is closed by means of leather valve packing 72 seating against valve seat. 73. 71-isa p I solidmetal filler in the upper end of't-ube -10 lever 15 has a series of and screw 75 secures packing 72 in place, see Fig. 5 The change in position of bent lever 15 prltises pail or hollow weight 59 from its osition on the floor of tank 8; and as tank 5 S is bun partially emptied. the subinerging 62 leading to the discharge leg 9 of siphon 10 i cated by ine .1. leg 11 is full almost to the I;

siphon bend and leg 9 empty. closed and valve 11 open. but as valve 31 Valve 31 is i controls the openings both to'conduit 62 and tube -10 neither can operate. valve 41 is to close tube 10 while conduit 62 is in operation. When handle 27 is depressed the parts tgke' position as represented in Fig. 3,and may be explained as and 52.

follows z-Handle- 27 being lowered, connecting rod 23 is raised and nut 65 thereon raises the short end- '21 of lever 19, depressing its bentend 18 and giving partial oscillation to rock shaft 33 with its arms 32 Downward movement of said end 18 causes telescoping plunger 1-1 to descend and force the water within fixed tube 13 through assage 12 into leg 11 of siphon 10,

- and by filling the crown of the siphon it is made operative. Then the water in the tank 8 is drawn by natural siplionage through fiap valve 66, which only 'opens upwardly.

and through said passage 12. the abundant -fiushing' flow continuing until the water level in tank 8 reaches the line marked Y in Fig. 1. when the siphon breaks. The downward movement of arm 32 as in Fig. 3. causes valve 31 to open as before described and water under fullpressure from the main The service of i toggle members atan angle, opens valve -11,

water I oil'se ts the-amount inclosed in the ad, the weight of the metal parts alone not eing suflicient to overcome the inertia. and

friction of the toggle members, 43,-. 1-1. When the water is lowered to about line 2 of Fig. 3; the weight of 59 becomes sufficient to operate bent lever -15 and move it to its original position as in Fig, 1. This sets the and water is'delivered to tube 40 through openings 76 in its upper end, see Fig. 5. and thence noiselessly into the water in bottom of; tank 8. As tube 40' is considerably smaller than leg 9 of the siphon'the discharge exceeds the supply and the water level gradually drops to level 1', when the siphon ceases toact. At. this stage valves 31 and 11 are both open and water is entering tube 40 to fill tank 8 and conduit 6'3 forth'epurose of re-filling the bowl after the flush. his 'refill," by other means, is a well-' known operation in most flush'tanks and need not be further described here.

cient to float telescoping plun er 1-1, lever 19 gradually resumes its original position, and ever '25 is returned to its position bv the rise of the. plunger 1-1. Valve 31 is thus soon closed and arm 54, in returning to its initial position, does not operate lever -15. as when the water in tank 8 rises. to aheight suffi- 1 cam surface 711 on lug 55 contacts with roll 50. the inclined socket 56 permits arm 54 to ride over roll 50-and drop into its first position.

we claim as our invention: '1. In a. flushing apparatus, a tankcon nected to supply and discharge pipes for the inlet30 flows through conduit 62 and nozzle 63, axially downward in the discharge leg 9 l-tical stem and twp vibrating water current and inclosing the operative mechanism including a permanent siphon. in combination with inclosed siphon primin means comprising a tubular base self-fille at the bottom and connected with the leg ofthe siphon, a telescoping plun er wit-h'verevers and a.

eemee eonnecting rod for actuating seid plunger, end means whereby said plunger controls in its movement, the supply pipe.

1e filling at the botton enfi connected with the short leg of the siphon, e telescoping nlunger f with a, vertical stem and two vi rating levers, means for operating the plunger, e eonneetion between the nip; on end the supply pipe, and means whereby said plunfiei' controls in its movement the connection etween the supply pipe and the siphon.

in afiushing apparatus, a tenkeonnected to supply end discharge pipes for the Water current and inelosing the operating mechan ism including a )ermenent siphon in combination With inclosed 'si hon priming means com rising a, fixed tubu er base self-lilling at the ottom and connected with 'the short leg of the siphon, a telescoping plunger with a vertical stem and two vibrating levers,

tion between the siphon end the supply pipe, and means whereby said plunger controls in its movement the conneetion between the supply pipe and the siphon, enrl the supply pipe.

GEORGE W. PALMER. FREDERICK E. PlERCE.

Witnesses:

E. R. BROWN, O; A. TAFT.

means for operating the plunger, e eonnec- 

